Self-cleaning ditching-shovel.



PATENTED JAN. 15,1907.

W. F. COOK. SELF CLEANING DITGHING SHQVEL.

APPLICATION FILED JULYG, 1906 3 SHEETS-SHEET 1 PATENTEDJAN. 15, 1967. W. F. COOK. SELF CLEANING DITGHING SHOVEL.

APPLICATION FILED JULY6,1906.

SHEETSSH'EET 2.

PATENTED JAN. 15

W. P. (390K. SELF CLEANING DITGHING SHOVEL.

OOOOOO WliQLL KM F. C OQK, F

3 f r -"D M 'ivi @rwwv r- I i stricter? i lo Moll 0E5 Millilllifs, iOWA.

no. 8 1L374.

Specification of Letters Patent.

Patented Jan. 15, 1997.

Application filed July 6,1906. Serial No. 825,398.

Iowa, have invented it certain new and useful 1 ..1ch the Self-Cleaning Ditching-Shovel, of in following is a specification.

My improved. shovel is especially designed for use in COllHeCtiOll with that class of ditchin nmchines in which the shovel is moved transversely across the bottom of the ditch and then removed to a point at the side of aditch, where its lead is discharged.

lily object is to provide a. shovel of this class having it back capable of sliding some, ment within the shovel from one end to the other-to form av heck when the shovel is moved in either direction and, further, to

provide moons for stopping the body of the shovel when it has reached a discharge-point and then to edvcncc the back to thereby disollar e the load and clean the shovel and to stand in position for forming aback for the shovel when the shovel is moved in the oppo- 2 site direction.

A further object is to provide simple, dureble, and inexpensive means for automaticcll'v locking the back when it has reached either limit of its movement and for releasing the back and moving it toward the other end of the shovel when the shovel has reached a dischsrgepoint.

My invention consist-s in the construction, arrangement, and combination of the various ports of the shovel and the cosc'ting ports whereby the objects contemplated are cttsined, as hereincfer more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in. Wl1ioh Figure 1 shows an end elevation of a portion of c ditching-machine in a ditch with my improved shovel and a part of the shovel- Inoving devices in position thereon. The dotted lines show the position of the shovelwhen it has reached a discharge-point. Fig. 2 shows a detail plan view of a part of one of the bearing-boxes for supporting one of the axles of the shovel. Fig. 3 shows 9. detail perspective view illustrating aport of the shovel-beck supporting and guiding plate and the means for attaching the draft-chitin thereto. Fig. 4 shows a top or plan view of the shovel. Fig. 5 shows a vertical-sectional view on the line 5 5 of Fig. 4. 6 shows a top or plan view of a port of the shovel and s f rnme being broken away to show cer- I tails of construction.

luefc ing to the accompanying; drawings, the part or" the ditching-machine shown cononly oi the shovel and coin rise at central portion com- .1. posed ol' two S1Cl6 plates 10, with angle-bars ll and 12 pl'fljflliilllg inwardly from their inner f to form tracks. At one end of the me be :cd or lowered to give proper elevation for discharging the load at the side of e ditch. At the outer end of the extension is direction-p11lley 1s, and near the cen- 15. A rope. or cable 1 6 15 passed around the pulley lsl and under the pulleys .15, its ends.

. latter sppccr. 'llhis rope or cable is de-.

one side of the ditch to the other, and the ditchingmeclsine may be provic (l witli the usual means for ope ting said cable.

The shovel comyn'isos a top frame consistangle-ours l7 and 18. These are on mooted by means of two cnglobars l9 and 2 at each side, thus forming c rigid roctenynisr frame. in each of the end crosspieccs l have mounttheir top edges inserted between the anglebars 19 and 20 and firmly SOCIIILd thereto, said sides being extended stioiglil down wcrdl y' and the bottom piece QT being 9.1-

end Th is sid e c n (1 bottom plate is reinforced and strengthened by means of s cutting-bar 28, which has its ends scoured between the angle-hers 19 and ZOond its sides and bottom z firmly connected to the adjacent end of the no lug cross-pieces of the members that support the 6 5 was 10 is a. hinged extension 13, which ter of the frame ll) are two direotiorrpulleys lacing r-imnccted with. the shovel, as will l1ercsigned to move the shovel alternately from ing of 1W0 end cross-pieces, each mode oi t'wo 8 5 ed l'wo bearing-boxes 21 to receive the axles 0' The cross-plows oi the shovel-lreme are also are preferably formed of a. plate metal 26 with we ranged at right angles to the sides at both sides and oottom of the shovel and provided with e sharpened edge extending heyond the glare which forms the sides and bottom. These cutting-hers 28 are arranged on the outer. surface of the sides and holloz'n, so ihstthe interiors of the sides and hoiiom are smooth and straight throughout their entire length.

The shovel-hack comprises a smooth ilsl plate 29,sr1nnged to loosely ifii. he interior of the shovel. sides and hot mi. ii; is provided with e reelengulzn siiil'c' lug-ironic 3O edges. At its top are two l rsnsverse single bars 3] firmly secured thereto and connected to a sliding suppo[ling-plate Tl'iiS sliding supporiing-plate is mourned in guide plates 33, which a re firmly fixed lo The anglehers 17, 2st, and there being (We spacing bars 3% hol ween the ouier edges of the pistes 33 rind the ongle bers 24 and Al: each end of the sliding supporting-piste IE2 is u reinloreing-blocl 35, nisde oi herd metal, for purposes hereinaftermade clear, and below each end of the hints 32 is s doumwerdly-projeeting block 36, having s loop 37 etioclied thereto to receive the chain 38, which is eonnccted with the cable 16, and at the other end of the block 36 are iwo brsee-rods 39, extending downwardly and toward the shovel-beck, to which they are firmly fixed. this rengenienl. it'is obvious that the shovehhsek is firmly supported within tha shovl end. yet may be moved from one end oi. the shovel so the other.

I have provided for securing the shovelheck when in positionet eitherliinitof its movement and also for euloms-tieslly releasing inso shot is may he moved to ils opposite limit, as follows: Two blocks 40* fixed to the 'uide- ,lslies 33 Lo engage the migleduirs 3'1 when i e shovel-inch is :11; either limit of iisniovemcnt, and thereby prevent iifrom moving out of she shovel. iivoied between the sng le bersj 24 and is a. trip-lever 4G -to extend outwardly from n; center of "the shovel over the eross pieoe 18. liv ot-ed he- .neuth, alui'trip lever lflis e looking-{her 41, which is also pivoted heluveent he angle-bars 24 and and which extends downwardly end toward (he cenior oi the shovel and has secured to its lower end a reinforced blOCli of hard motel, An arm lfi is pin lied to the bar =21 to em" end upwardly, and it is provided with a slot 44 no reeeive a. pin 45, which is fixed lo the trip-lever 4-0, thus slloiving e slighl movement between lhe trip-lever and the locking-her 41. The shape and nropon tion of each of these parts ere such libel the locking-bar mey rest upon (he top of the plate 32 While the arm is resting on. top of the sngle-hsr l8, and which may also drop by gravity to a point where its reinforoinwblock 42 will engage the reinforcing-block 35 of the plate 32 without any movement on the part of the lever 40. However, when the free end ,eve

of the plate 32 is in engagement Willi the other locking-her the shovel-beck will he at it's o'pnosiie limit of movement, it being un ders'lood that there are two 'i ripdevers and locking-burs, shown in. the drawings.

Il. luive provided means :lor euton'istieslly stopping the movement of the shovel when it has reached 21 dumping-point and for lifting tlieloclo; g-her, so that the shovel-beck may one one Lo move follows: Fixed to the angle-hers ii in, the point Where the dumping to take place are tivo stops 46 in the path of the crosspieoes 17, Winch provided to "positively stop the advance of the shovel when it reaches said stops. Ad jsoentlno the stops i6 is a llXQd cross-piece 47 with its ends ured to the angle-burs l1.

port-ed on the angle-bars i1 is another cross- Slidingly suppiece 48, and two parallel rngle-bnrs 4:9 and 50 are fixed to the sliding sdjustnhly oonneoted to the fixed cross-piece 47 by means of the bolt 51', passed through 0 eningsin the bars 4-9 and 50 and inserted 1n t 1o fixed oross-pieoe 47. .lu this Way the oross-pieeeel8 end the bars 49 and 50 may be adjusted relative to the cross-pieoe47L Rotamhly mounted bet-ween the ends of the bars cross piece and I oo 49 and 50 is atr'ip-roller 52, arranged-i0 be.

engaged by the trrpdever 4.0 just prior to the time the shovel engages tho'scops 16, so that before the shovel. strikes the fixed stops the shovel-heok will be free to move from one end of the shovel to the other and discharge the load. [is soon as the shovel-heel: reaches its limit of movement after having cleaned the shovel and "discharged the load the looking-- oer not previously engaged ,Will drop oehind the end of the plate 32, and thus lock the shovel-beck in position at the and oi the shovel opposite from the end it previously 00 on ied.

n practical use and assuming the shovel its movement on the d 1tohhis will cause the hack to move to the outer end of the shovel, and thus discharge the load and clean the interior'of llhe shovel. My improvement is of especial value in laces Where the shovel cuts through wet c sy or earth that tends to adhere to the shovel, bc-

cause the movement of the back will clean the interior of the shovel no matter how tenaciously the clay or earth. should cling to I it.v moved relative to the shovel to a sullicient degree the locking-bar will drop behind the end of the shovel-back-supportlug plate.

Then when the movement of the cable is reversed the shovel-back-supporting plate will strike against and be held by the loc'l zingdmr,

so that the back will always be at the rear end of the shovel when the shovel is moving in either direction.

l provide lIiiIdOHGd COIHQLCt-blOCliS for the Then when the shovel-back has'been I .bar to permit the shovel-back to move after the shovel has been-stopped;

7 In a ditching-machine, the combination of a track, an open-ended shovel slidingly mounted in the track, a shovel-back slidingly mo tinted in the shovel, a locking-bar tor holdfing the shovel-back near one end of the 3 shovel, a cable attached to the shovel-back ends of the shovel-supporting plates and the locking-bars to these points.

llaving thus described my invention, what I claim, and desire to secure by Letters Patent of the United States therefor,'is-

1. The combination of an open-ended ditching-shovel and a shovel-hack slidingly prevent excessive wear at supported within the shovel and capable of movement longitudinally of the shovel.

2. The combination of a n o'pen-ended ditching-shovel, earth-cutting edges at both ends of the shovel and a shovel-back slidinglv supported within the/shovel and capable (if movement from one end of the shovel to the other. 1

3. A ditching-shovel, comprising a frame,

, shovel sides and bottom connected with the frame, earth-cutting blades at the ends of the shovel, also connected with said frame, a

plate slidingly supported on the frame and a shovel-back fixed to said plate.

4. A ditching-shovel, comprising a frame, shovel sides and bottom connected with the frame, earth-cutting blades at the ends of the shovel, also connected with said frame, a

7 plate slidingly'supported on the frame, a

shovel-baek fixed to said plate and means carried by the frame for looking the sliding plate in position with the shoveLback adjacent to either end of the shovel,

5. In a ditching-shovel, the combination of a frame, shovel sides and bottom fixed to said frame, a sliding plate mounted in the frame, a shovelback fixed to-said plate and two locking-bars pivoted in the frame to engage the sliding p ate and thereby hold the shovel back in position at either end of the shovel.

6. In a ditching-machine, the combination of a track, an open-ended shovel slidingly .mounted in thetrack,a shovel-back sliding-1y mounted in the shovel, a locking-bar for bold ing the shovel-back near one end of the shovel, a cable attached to the shovel-back to advance the shovel-back and shovel,

means for limiting the movement of the shovel and means for releasing the lookingto advance the shovel-back and shovel, means for limiting the movement oi the shovel, means for automatically releasing the locking-bar to permit tile. shovel-back to move after the shovel has beenstopped and stops for preventing moving out of the shovel.

8, In a (litehingznachine, the combination of a supporting-track, an open-ended shovel slidingly mounted in the track, a shovel-back 'slidingly mounted in the shovel, two locking bars connected with the shovel for holding the shovel-back in position at either end of its movement, a trip-lever connected with each locking-bar, a rope or cable connected with the "shovehhack for adval'icing the shovel-back and shovel, a stop for limiting the movement of the shovel and-means for engaging the trip-levers to release the locking-bars to permit the shovel-back to move after, the shovel has stopped.

9. In a ditching-machine, the combination of a supporting-track, a-nbpen-ended shovel slidingly mounted in the track, a shovel-back slidingly mounted in the shovel, two lockingtraverse said track, a plate slidingly mounted, in the frame, a shovel-back commgtadwith said plate,'a locking-bar ivoted to the frame to engage one end of Sfli late, a slotted arm on the locking-bar, a triplever fulcrumed to the frame and provided with a bolt to enter the slot in said arnnsaid tri -lever designed to engage. the adjustable 1'ol er, a stop adjacent to the adjustable roller to engage the shovel and a chain or cable attached to the shovel-back,

I, WILLIAM F. oooK.

Witnesses:

SIDNEY F. CImIsTY, J. RALPH Omvlo.

the shovel-back front 

